Vulcanizer



April 9, 1935. A, w SCHARPF 1,997,268

VULCANIZER Filed DSC. ll," 1933 l V a, y A

5 INVENTOR ZV. gyda/7%) ATTORNEY.

laa.teni:edApr. 9, 1935 e y y y Y UNITED" i Ainriazltr TOFFICE .oneethird to Bernard R. vHammes and one-third y to William R. Finn, LaV Crosse, Wis. Application peeemper 1i, 1pz-ss,A serial No. '101,805 1 .y n s claims Av(oi.' 11a- 18) Y f" l Thisinivenson relates ro' improvlir'ient1sk invul- Fig.. 2 isasimilar View only Showing theheefdinv canizers, and more particularly to an ele'c' :tric'ally' lowered,work-engagingposition; U n i, g heated vulcanizer for repairingpneuinatie tre 'Eig'. 3 is a seetional viewltaken on line3-'3 of, inner tubes and other classes ofrubber goodsg 2. l" f u ,l 9 Y l Y A eeneralobieot of thepresentinvention is to` 1 Fie.` 4 is an enlarged, fraementerroeteil seof` 5. provideY an improvedelectricallyoperated vulcan-- 'tional view of the block, head and arm portimslofv` izery Which'is very rapid'in its'opierationbut eco-4 the vulcanizeryand y r j nomical in current consumption, easily ma-k Fig. Sis-'a horizontal siectionalviewitaken on line nipulated, and is, moreover, highly eiiicientinuse. 5:-,5 of Figi?, i

Y ma A yfurther object of the invention is to provide Referring now more particularlylto thefdraw-i a vulcanizer inwhich the vulcanizinghead is maing it will appear that the improved vulcanizerV nipulated to and from vulanizingj position byv includes a flat, relatively heavy, metallic` vlease:V means of a lever, there being"an'ieccentric'enportion formed rat, one end with anyenlargee;4 gagement between said lever andtheihead carryment 9, y Said enlargement is recessedinwardly ing arm whereby the head end ,om may be tight-y from its top surface to reoeive an upwardly'fpro-` 151.7y ly clamped in 'lowered vulcanizing'position by a jecting vulcanizing bloei; lll, formed 0fv harm4 simple movement ofthe lever. lj j rubber, ora similarrresilient material, l

A further object of; the inventionis to provide Projecting upwardly fromv an intermediate a vulcanizer in whichthe headjwhen securedin portion of the top surface of the base 48 are a vulcanizing position will apply an' unusual amount Vpair of spaced lugsll between which is pivotal., 2,0,y of pressure to the material engaged bythe head. ly mounted, on a pivot pinl L2, the lower endbf A further specific object offthe invention is to an upwardly extending link I3. At the end of provide a vulcanizer in which 'a movement of the the base V8, opposite the enlargement 9, "there lever will raise the vulcanizing head r`to a'ninopare a pair of spaced, longer, ,upstanding' lugs erative position, there beingr means for automati'` I4 between which, on a pivot pin l5, the; lower 25 cally, releasably locking the'lever in thisposiend portion @,f e Curved, head carrying arm L5 tion. is pivotally mounted. 'The outer end portion ,of A furthervobject of the invention is to'provide the arm L6 Ahas a bore 'I1 therethrough vand an a vulcanizer wherein there isa ball andA socket 10Iigaid iiD-billar post I8y ,isV slidably extended joint between the vulcanizing head and the arm thrqugh Said bore, The lOWeI end 0f said posi 3Q, carrying the same, this arrangement tending to isiormedas a ball lil-which seats in a socket 26' apply the-pressure in suona manner that -thelow i919) 100,55 PQIQIi .0,11 the upper face .of a vul,- of gum lover uneven spots on the material being (ionizing Mind-2i, by Which means said head isrepaired, win be equalized. A i universally moi/ably carried bythe lowerend 35, A further object or theiinvekntion is to provide, ofi-the post. Aber/#etno ball portion .le said post 3, a vulcanizer wherein, whenthe head is clamped iS 'formed With a yShQillfiI 22 which engages` the?` in operative vulcanizing position, a compressed 10W @11d DQIiiOli' 0fy a Spring 23 c0116@ ai'ollt spring reats against the vulcanizing head, to ape, a 190111011 0f the IJQS.; In the under Sido 0f. thel ply pressure so that the flow of ,raw gum rubber 01.1139? eiidPOliliQIl 0f the arm i5 there iS alreCQSSv. 40 will be forced into the spot being repaired. 24,. .0,f gpl'atl diamete1-than Ythe .boro l1, and on A further object of the invention is to provide the upper end portion .of lthe spring 23 extends a vulcaniaer which is of very simple construction, into Sad-A ICQGSS t0 .resilieni'liy .engage iii-1 @liter is inexpensive to manufacture' and operate, is end Portion 0f the afm |5- A nui? `"7x5v is ihilffidedA v. strong and durable, and is wen adapted for the ontothe upper threaded end portion .of the .post purposes set-forth. Y I8 to limit movement of the post in .one direction 5V With the yabove and other objects in View the dueto thee-Xpansive force of the `Sliirlg `23. invention consists of the improved vulcanizer, AII intermediate DOIOII 0f the .link 13,6Xilenfds v and its parts and combinations asset forth'in Slidabl'yrihlQU-gh a S1015 V2.5 in ali intermedi-a@ l Y the claims, and al1 equivalents thereof. *e portion .of Ythe arm Hi and theppper endportionL 50, In theaccompanying drawingin which th Qfoaid link extends between -hobifuroated eee-., same reference characters indicate the same .parts centric pOIbiOilZT 0f 31,1 Operating iol/B1" 23, find,y in an of the views: Y v Y is pivotally secured to an upper portion of the, Fig. 1 isa side view of the improved vulcanizer lever, intermediate the ends of the n saine,` asy with the vuleanizine head Ain raised position, part at 29, f As mentioned, the portion 2l of the, loyer 5.15 beine broken away and section; t .l is eoeentrioend said eoeeotrio poetioprupoo er 5i;

' r said Vparts in lifted position. When the lever 28.

the cross-pin 3| of the loop member rides on the' inner surfaces of the eccentric dening the open-k ing 32 and in the position of the lever shown in Fig. 1*, which eiects a -Alifting ofthe. arm A|6 and vulcanizing head, the V`cross-pin 3|; lodges in a recess 33 and thereby releasablyf secures is moved to its other extremelposition, asin Fig.

,2, the cross-pin rides in the opening 32 to'rthe other end thereof and the loop depends. as shown. Movement* of the eccentric to eiectA a lowered, locked positionof the arm I6 Vand vul`V` canizing head 2| is limited by a' pin 34 between the outer extremities. of the bifurcated portions of the eccentric 2'|,Y said pineng'aging an edgeof thelinkl3.v i

The vulcanizing head 2| is formed with a top metallic plate, alower, recessed-metallic plate 35, and an interposed layerA of insulating material 36.- Within the recess of the plate 35 there are layers of resistance elements 31V separatedA by sheets of mica Ior the like." "Electric current is obtained from anyconvenientfsourceA (not shown) lbyci'rcuit wires 38 and 39 which extend downwardly through the post 8 and connect at their ends vto-diflerent portions of the resistance elements`3'l. Mounted in a hollowfr boss portion 4D in the head 2|', and intersecting one of the circuit wires, is a thermostatic member 4| which controls thetemperature of the resist-v ance elements, within certain predeterminedv limits.= i

To operate the improved vulcanizer it is rst necessary to attach the circuit wires 38 'and 39 to anelectrical outlet and then current willow to the resistance elements in the vulcanizing head. -Prior to the head being heated to the proper vulcanizing heat, which takes aboutten minutes, the head should be maintained in lift-,-V 'Ihis is" accomplished by 'moving the lever 28 in a clockwise direction with respect,

ed position.

to Fig.- 2 until the position illustrated in Fig.'1 is attained wherein the cross-pin 3| lodges in the recess 33 andhreleasablyj holds the parts in, theV illustrated position. The article to be vulcan# ized, as for instance an inner tube 42, is preferably prepared and is placedover the vulcanizing-` block I0. The repair patch 43 is placed `on the block over the damaged portion of the tube. After the vulcanizing head has been sufficiently heated, it is necessary, to lower it and this is accomplished by moving: the lever 28 from the position shown in Fig. l, a counter-"clockwise direction, to the positionshown in Fig.` 2. During this movement the eccentric 21 will ride on the top surface ofthe arm Hv and force it, and the post I8 carried thereby, downwardly. In

the lowered position ofthe arm I6, the head 2|.

clampingly engages the work on the block and a tight clamping engagement is eifected by vir; tue of the compression of the spring 23.` The, arm I6 is releasably locked in lowered position by the shape of the eccentric -21 which engages it, and by the fact thatV the lever is thrown beyond dead center with respect to its pivotal mounting 29. In a relatively short period of time the tube or other article will be efficiently vulcanized and by moving the lever in the reverse direction the head will be raised to release the work.

From the foregoing description it will be seen that the improved vulcanizer is of simple and novel construction, and is well adapted for the purposes set forth.

What is claimed as the invention is:

y 1.i In a vulcanizer,va base member having a vulcanizing block at one end thereof, an arm pivotally connected at one end to said base, a

vulcanizing head, a resilient connection between theo'uterrend of said arm and the head, a pivotally mounted lever directly contactable with said armv to Ylower it and the head toward the block, and a lifting'connection between the lever and ,the arm.

1 thehead, 'a pivotallymounted leverV directly contactable with said arm to lower it andthe head toward the block, and alifting connection between the lever and the arm and freely'engaging the latter. v f Y f 3. Ina vulcanizer, a .base member having va vulcanizing block at one end thereof, an arm4 pivotally connected at one'end lof the base, a vulcanizing head, a post universally connected with thehead vand slidably connected with the free end of said arm, resilient pressure applying,

means between the arm and vthe head, a piv- .otally mounted lever directly contactable with `said arm to lower it and the head toward the block, anda lifting andthe arm. p

4. In a vulcanizer, a base member having a connection between the lever vulcanizing block at one end thereof, Van arm' pivotally connected at onevk endto said, base, a vulcanizing head, a resilient connection between theouter end of said arm and the head; a pivotally mounted lever directly contactable with surface portions of said arm to lower it and the head toward the block, and a, motion augmenting elevating connectionfbetween the lever and said arm.v

5.In a vulcanizer, a baseY member having a vulcanizing block at one end thereof, an arm pivotally connected at one end to. said base, a vulcanizing head,.a resilient connection between thebuter endl of said arm and the head, a pivotally mounted lever directly contactable with said arm to lower it and the head toward the block, land a traveling, motion augmentingelevating connection between lthe lever. and said arm. Y

`6. In a vulcanizer, a base member having a vulcanizing block at one end thereof, an arm Y pivotally connected at one end to said'base, a vulcanizing head, a resilient connection between the outerend of said arm and the head, a pivotally mounted lever, an eccentric formed at the inner end portion of said lever and contactable with said arm to lower it and the v-head toward'the block, and a shiftable lifting connection between the lever and the arm.

. '7. Inf-fal vulcanizer, av base member v havingl a vulcanizing block at one end thereof, an arm pivotally connected at one end to said base, 'a 75'- vulcanizing head, a resilient connection between the outer end of said arm and the head, a pivotally mounted lever contactable with said arm to lower it and the head toward the block, and a traveling, motion augmenting elevating connection between the lever and said arm, said connection being lodgable in a recess in said lever to releasably lock the leverl and parts carried thereby in one position of adjustment.

8. A vulcanizer, comprising a base memberV head and slidablyconnected'with the free end of said arm, resilient pressure applying means between the arm and the head, a link pivotally connectedat one end to saidbase, a lever pivotally connected intermediate tits ends to the other end of said link, the inner end portion of said lever being formed as anV eccentric and being engageable with thel top portion of said arm, there being an opening in said eccentric, and a looped member Vdepended from the opening in said eccentric portion Yand shiftably engaging said arm to lift it upon movement of the lever in one direction.

ARTHUR W. SCHARPF. 

